CEN10CA192

NTSB accident investigation · Stroup Robert RV-6 · Muleshoe, TX · April 5, 2010

Accident · Minor injuriesData collectionFinal report
Date
April 5, 2010, 17:44 local (22:44 UTC)
Place
Muleshoe, TX
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N58BDStroup Robert RV-6
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 1, 2010
Report
Approved by Office Director
NTSB office
Central Region
FAA report
20100405030779A
Case key
75660

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain directional control during takeoff in strong, gusting winds.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedStroup Robert RV-6: 1 caseAll aircraft: 3,958 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationStroup Robert RV-6: 1 caseAll aircraft: 1,199 cases
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotStroup Robert RV-6: 1 caseAll aircraft: 9,295 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot lined up the airplane along the centerline of runway 25 and noted that the winds would be a "strong quartering left headwind/crosswind." Shortly after commencing the takeoff roll the airplane's tailwheel lifted off the ground and the airplane began to veer left as the airplane weathervaned about 20 degrees to the left of the runway heading. The pilot elected not to abort the takeoff and attempted to correct back to the runway heading. As the airplane approached the edge of the 60-foot-wide runway it became airborne. Control of the airplane was lost and the airplane pitched up and rolled right. The roll continued until the airplane was inverted, at which time the nose dropped and the airplane impacted the runway inverted and skidded 20 feet off the right side of the runway. A review of photos provided by the pilot and first responders revealed substantial damage to the fuselage and both wings. There were no reported anomalies with the airframe or engine prior to impact. At the time of the accident weather in the vicinity of the airport was winds from 220 degrees at 20 knots gusting to 27 knots.

Factual narrative

The pilot lined up the airplane along the centerline of runway 25 and noted that the winds would be a "strong quartering left headwind/crosswind." Shortly after commencing the takeoff roll the airplane's tail wheel lifted off the ground and the airplane began to veer left as the airplane weather vaned about 20 degrees to the left of runway heading. The pilot elected not to abort the takeoff and attempted to correct back to runway heading. As the airplane approached the edge of the 60-foot wide runway, the airplane became airborne. Control of the airplane was lost and the airplane pitched up and rolled right. The roll continued until the airplane was inverted at which time the nose dropped towards the runway and the airplane impacted the runway inverted and skidded 20 feet off the right side of the runway. A review of photos provided by the pilot and first responders revealed substantial damage to the fuselage and both wings. There were no reported anomalies with the airframe or engine prior to impact. At the time of the accident weather in the vicinity of the airport was winds from 220 degrees at 20 knots gusting to 27.

Aircraft

Registration
N58BD
Reported as
Stroup Robert RV-6
Category
Airplane, amateur-built
Serial number
20070
Engine
Lycoming 0-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Carter David C
Registered owner
Carter David C
Airworthiness certificate
Special, Experimental (Special)
Departed
2T1 · Muleshoe Muni, TX
Destination
Temple, TX
Flight plan
Unknown
Airport
2T1 · Muleshoe Muni, runway 25, 5,100 × 60 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
70
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
September 2, 2009
Seat
Left
Flight hours
5,496 total · 256 in this make and model · 5,496 as pilot in command · 12 in the last 90 days · 12 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 24 knots, gusting 30
Visibility
10 statute miles
Temperature
81 °F, dew point 23 °F
Altimeter
29.79 inHg
Observed at
KCVN, 26 nm away

Docket · 2

The files NTSB released with the investigation on April 20, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.1 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.